package cn.tedu.oss.service.impl;

import cn.tedu.oss.service.OssService;
import cn.tedu.oss.utils.OssConstant;
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.OSSObject;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import lombok.extern.slf4j.Slf4j;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
import java.util.UUID;

@Service
@Slf4j
public class OssServiceImpl implements OssService {
    @Override
    public String uploadAvatar(MultipartFile file) {
        // Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
        String endpoint = OssConstant.END_POINT;
        // 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。
        String accessKeyId = OssConstant.KEY_ID;
        String accessKeySecret = OssConstant.KEY_SECRET;
        // 填写Bucket名称，例如examplebucket。
        String bucketName = OssConstant.BUCKE_TNAME;
        // 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。
        String objectName = file.getOriginalFilename();
        String fileName = UUID.randomUUID().toString().replaceAll("-","") + objectName;
        // 填写本地文件的完整路径，例如D:\\localpath\\examplefile.txt。
        // 如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件流。
//        String filePath= "D:\\localpath\\examplefile.txt";
        String datePath = new DateTime().toString("yyyy/MM/dd/");
        fileName = datePath  + fileName;
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

        try {
            InputStream inputStream = file.getInputStream();
            // 创建PutObjectRequest对象。
            PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, fileName, inputStream);
            // 设置该属性可以返回response。如果不设置，则返回的response为空。
            putObjectRequest.setProcess("true");
            // 创建PutObject请求。
            PutObjectResult result = ossClient.putObject(putObjectRequest);
            // 如果上传成功，则返回200。
            log.info("阿里云OSS上传文件请求状态码: {}",result.getResponse().getStatusCode());


        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
        return "https://" + bucketName + "." +endpoint + "/" + fileName;
    }

}
